Fuel System - Kubota SM-E4B Series Workshop Manual

SM-E4B SERIES, WSM

(4) Fuel System

Injection Timing
1. Remove the injection pipes.
2. Remove the engine stop solenoid.
3. Turn the flywheel counterclockwise (viewed from flywheel side)
until the fuel fills up to the hole of the delivery valve holder (3)
for No. 1 cylinder.
4. After the fuel fills up to the hole of the delivery valve holder for
No. 1 cylinder, turn back (clockwise) the flywheel around 1.6 rad
(90 °).
5. Turn the flywheel counterclockwise to set at around 0.44 rad
(25 °) before T.D.C..
6. Slowly turn the flywheel counterclockwise and stop turning
when the fuel begins to come up, to get the present injection
timing.
7. Check to see the degree on flywheel.
The flywheel has mark "1TC", "10" and "20" for the crank
angle before the top dead center of No. 1 cylinder.
8. Check to see if the timing angle on the flywheel is aligned with
the alignment mark (2).
9. If injection timing is out of adjustment, readjust the timing with
shims.
Z482/D602-E4B (3600 min
Injection timing Factory specification
-1
D722-E4B (3200 min (rpm) spec.)
Injection timing Factory specification
-1
D782-E4B (3200 min (rpm) spec.)
Injection timing Factory specification
-1
D902-E4B (3600 min (rpm) spec.)
Injection timing Factory specification
(1) Timing Line
(2) Alignment Mark
(3) Delivery Valve Holder
(4) Shim (Soft Metal Gasket Shim)
1-S19
-1
(rpm) spec.)
0.3186 to 0.3447 rad
(18.25 to 19.75 °) before
T.D.C.
0.3360 to 0.3621 rad
(19.25 to 20.75 °) before
T.D.C.
0.2837 to 0.3097 rad
(16.25 to 17.75 °) before
T.D.C.
0.3186 to 0.3447 rad
(18.25 to 19.75 °) before
T.D.C.
(5) Two-holes : 0.20 mm (0.0079 in.)
Two-holes : 0.175 mm (0.00689 in.)
(6) One-hole : 0.25 mm (0.0098 in.)
(7) Without hole : 0.30 mm (0.012 in.)
(8) Three-holes : 0.35 mm (0.014 in.)
(To be continued)
KiSC issued 01, 2013 A
ENGINE